# STC SH4409SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Soloy LLC, United States
- Description: Installation of replacement engine exhaust gas temperature (T-4) indicator.
- Applied: November 21, 1979
- Status date: December 22, 2004
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H9EU](https://openairdocs.org/tcds/H9EU)
- Certificate PDF: https://openairdocs.org/files/sha256/26/13/2613cbfdc90126339dd9b8d40ea33a2870a6151bdc37ff1e2c415cef72091674
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6BDFDDAD7FFDB7AF86257A150071E5F7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH4409SW

## ADs that name it (0)

None.

## Approved models (1)

- Eurocopter France AS-350D ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Number SH4409SW

This certificate, issued to Soloy, LLC.

450 Pat Kennedy Way, SW Olympia, WA 98501-7298 Part 27 of the Federal Aviation Regulations.

Original ProductType Certificate Number: H9EU Make: Eurocopter France (Aerospatiale, S.N.I.A.S.)

Model: AS-350D

Description of the Type Design Change: Installation of a replacement engine exhaust gas temperature (T-4) indicator in accordance with AHC Drawing List 350A82-1166, Revision C, dated may 26, 1981, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. FAA approved Rotorcraft Flight Manual Supplement 350FMS-016, dated July 2, 1981, or later FAA approved revision is required. Compatibility of this modification with previously approved modifications must be determined by the installer. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application: November 21, 1979 Date reissued: August 1, 1997; December 13, 1999;

December 22, 2004 Date of issuance: July 2, 1981 Date amended: October 29, 1984 Rev. 1;

December 22, 2004

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- December 22, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/26/13/2613cbfdc90126339dd9b8d40ea33a2870a6151bdc37ff1e2c415cef72091674)

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